“Walk along the Bagmati river in the Nepalese capital, Kathmandu, and you are hit by a pervasive stench, underlining the fact that poor wastewater management worsens air pollution,” says Birguy Lamizana, a UN Environment…

When Mandelena became a mother, she was only 16 years old. During the prolonged dry season in Gwor County, South Sudan over the last two years, Mandelena and her family have been able to eat only one meal per day. In her…